public class TestDog {
    public static void main(String[] args) {
        Dog a = new Dog("大黑");
        Ciwei b = new Ciwei("尖尖");
        GoodMan c=new GoodMan();
        c.name="吕洞宾";
        c.sex='男';

        Dog d = new Dog("哮天犬");
        d.bite(a);
        d.bite(b);
        d.bite(c);

    }
}
